diff options
| -rw-r--r-- | arch/s390/kernel/suspend.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c index cf9e5c6d5527..f03c8df992c5 100644 --- a/arch/s390/kernel/suspend.c +++ b/arch/s390/kernel/suspend.c @@ -7,6 +7,8 @@ */ #include <linux/pfn.h> +#include <asm/ipl.h> +#include <asm/sections.h> #include <asm/system.h> /* @@ -18,6 +20,8 @@ int pfn_is_nosave(unsigned long pfn) { unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin)); unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end)); + unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1; + unsigned long stext_pfn = PFN_DOWN(__pa(&_stext)); /* Always save lowcore pages (LC protection might be enabled). */ if (pfn <= LC_PAGES) @@ -25,6 +29,8 @@ int pfn_is_nosave(unsigned long pfn) if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn) return 1; /* Skip memory holes and read-only pages (NSS, DCSS, ...). */ + if (pfn >= stext_pfn && pfn <= eshared_pfn) + return ipl_info.type == IPL_TYPE_NSS ? 1 : 0; if (tprot(PFN_PHYS(pfn))) return 1; return 0; |